Kernel: Panic wont print stacktrace if it has already paniced

This prevents stack trace dump to panic and loop

kernel/CMakeLists.txt

@@ -27,6 +27,7 @@ set(KERNEL_SOURCES
 	kernel/kernel.cpp
 	kernel/Memory/Heap.cpp
 	kernel/Memory/kmalloc.cpp
+	kernel/Panic.cpp
 	kernel/PCI.cpp
 	kernel/PIC.cpp
 	kernel/PIT.cpp

kernel/include/kernel/Panic.h

@@ -4,23 +4,26 @@
 
 #define panic(...) detail::panic_impl(__FILE__, __LINE__, __VA_ARGS__)
 
-namespace Kernel
+namespace Kernel::detail
 {
 
-	namespace detail
+	extern bool g_paniced;
+
+	template<typename... Args>
+	__attribute__((__noreturn__))
+	static void panic_impl(const char* file, int line, const char* message, Args... args)
 	{
-		template<typename... Args>
-		__attribute__((__noreturn__))
-		static void panic_impl(const char* file, int line, const char* message, Args... args)
+		asm volatile("cli");
+		derrorln("Kernel panic at {}:{}", file, line);
+		derrorln(message, args...);
+		if (!g_paniced)
 		{
-			asm volatile("cli");
-			derrorln("Kernel panic at {}:{}", file, line);
-			derrorln(message, args...);
+			g_paniced = true;
 			Debug::dump_stack_trace();
-			for (;;)
-				asm volatile("hlt");
-			__builtin_unreachable();
 		}
+		for (;;)
+			asm volatile("hlt");
+		__builtin_unreachable();
 	}
 
 }

kernel/kernel/Panic.cpp

@@ -0,0 +1,6 @@
+#include <kernel/Panic.h>
+
+namespace Kernel::detail
+{
+	bool g_paniced = false;
+}